When using Shadow in a multi-project build, project dependencies will be treated the same as
external dependencies.
That is a project dependency will be merged into the shadowJar output of the project that
is applying the Shadow plugin.

In a multi-project build there may be one project that applies Shadow and another that
requires the shadowed JAR as a dependency.
In this case, use Gradle's normal dependency declaration mechanism to depend on the shadow
configuration of the shadowed project.